GB1407467A - Interference suppression circuits for radar receivers - Google Patents
Interference suppression circuits for radar receiversInfo
- Publication number
- GB1407467A GB1407467A GB5101572A GB5101572A GB1407467A GB 1407467 A GB1407467 A GB 1407467A GB 5101572 A GB5101572 A GB 5101572A GB 5101572 A GB5101572 A GB 5101572A GB 1407467 A GB1407467 A GB 1407467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- delay
- radar
- threshold
- circuit
- jamming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
1407467 Pulse radar SIEMENS AG 6 Nov 1972 [5 Nov 1971] 51015/72 Heading H4D In a pulse radar subject to frequency-swept jamming, its effect is reduced by an arrangement incorporating two delay devices 10, 16 each producing a delay of a multiple integral of the wanted standard echo duration T. In the embodiment an M.T.I. pulse radar has a fixedecho eliminating filter 7 (which may be digital) and a rectifier 8 the video signal output from which Fig. 3a, consists for example of resultant jamming pulses S1, S2, S3 and a wanted echo N in one radar pulse recurrence period EP. A circuit 11 of threshold W produces the output Fig. 3b, and a detector 12 and delay 16 feeds inputs Fig.3c, 3d, into an "interference substitution" circuit 14 to which is applied also the delayed version Fig. 3e of Fig. 3a. A "substitution level" store is connected to circuit 14, the output from the latter being as shown in Fig. 3f. The delay in devices 10, 16 and the threshold W in device 11 may all be adjustable. The substitution level may advantageously be equal to the mean noise D.C. voltage which may also be the threshold W. The effect of the invention on a scanning beam radar is explained Figs. 4 to 6 (not shown). When C.W. jamming is experienced the invention may be disadvantageous; it is therefore arranged that under these circumstances it be switched out.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712155074 DE2155074C3 (en) | 1971-11-05 | 1971-11-05 | Circuit arrangement for suppressing longer than the useful pulses lasting, in particular wobbled, interference signals for a pulse radar receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1407467A true GB1407467A (en) | 1975-09-24 |
Family
ID=5824328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5101572A Expired GB1407467A (en) | 1971-11-05 | 1972-11-06 | Interference suppression circuits for radar receivers |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2155074C3 (en) |
FR (1) | FR2158496B1 (en) |
GB (1) | GB1407467A (en) |
IT (1) | IT970156B (en) |
NL (1) | NL7214911A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528565A (en) * | 1981-04-27 | 1985-07-09 | Siemens Aktiengesellschaft | Pulse doppler radar receiver with a circuit for reducing spurious signals |
GB2257862A (en) * | 1984-07-26 | 1993-01-20 | Marconi Co Ltd | Radar receiver |
CN109932722A (en) * | 2017-12-18 | 2019-06-25 | 恩智浦美国有限公司 | For eliminating the device and method of interference signal |
CN118091550A (en) * | 2024-04-24 | 2024-05-28 | 中国电子科技集团公司信息科学研究院 | Multi-interference-source sensing method and device based on distributed radar and electronic equipment |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3015316C1 (en) * | 1980-04-22 | 1991-03-28 | Siemens Ag | Pulse Doppler radar with facilities for carrying out ECCM measures |
FR2745390A1 (en) * | 1984-01-27 | 1997-08-29 | Thomson Csf | Counter measure device for receiving coherent radar signals |
DE102019114551A1 (en) * | 2019-05-29 | 2020-12-03 | Infineon Technologies Ag | DETECTION OF INTERFERENCE-RELATED INTERFERENCE IN FMCW RADAR SYSTEMS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1322498A (en) * | 1961-05-01 | 1963-03-29 | Thomson Houston Comp Francaise | Improvements to pulse circuits |
FR1446016A (en) * | 1962-12-21 | 1966-07-15 | Gen Electric | Improvements to signal suppressor circuits |
-
1971
- 1971-11-05 DE DE19712155074 patent/DE2155074C3/en not_active Expired
-
1972
- 1972-11-02 IT IT3121872A patent/IT970156B/en active
- 1972-11-03 FR FR7238984A patent/FR2158496B1/fr not_active Expired
- 1972-11-03 NL NL7214911A patent/NL7214911A/xx unknown
- 1972-11-06 GB GB5101572A patent/GB1407467A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528565A (en) * | 1981-04-27 | 1985-07-09 | Siemens Aktiengesellschaft | Pulse doppler radar receiver with a circuit for reducing spurious signals |
GB2257862A (en) * | 1984-07-26 | 1993-01-20 | Marconi Co Ltd | Radar receiver |
GB2257862B (en) * | 1984-07-26 | 1993-06-09 | Marconi Co Ltd | Radar receiver |
CN109932722A (en) * | 2017-12-18 | 2019-06-25 | 恩智浦美国有限公司 | For eliminating the device and method of interference signal |
CN118091550A (en) * | 2024-04-24 | 2024-05-28 | 中国电子科技集团公司信息科学研究院 | Multi-interference-source sensing method and device based on distributed radar and electronic equipment |
Also Published As
Publication number | Publication date |
---|---|
DE2155074C3 (en) | 1978-08-17 |
NL7214911A (en) | 1973-05-08 |
FR2158496A1 (en) | 1973-06-15 |
IT970156B (en) | 1974-04-10 |
FR2158496B1 (en) | 1977-04-01 |
DE2155074B2 (en) | 1978-01-05 |
DE2155074A1 (en) | 1973-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |